Speaker



FIG. 1 is a perspective view of a speaker, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an opposite side view thereof; and,

FIG. 7 is a side view thereof.

The broken line portions show unclaimed subject matter only and form nopart of the claimed design.

CLAIM The ornamental design for a speaker, substantially as shown anddescribed.